Cucurbitaceae, the Gourd Family
Herbs, climbing by tendrils, with alternate palmately lobed leaves and imperfect flowers; staminate flowers in showy clusters, with 5-6 petals and 3 stamens; pistillate flowers small.
| 1a. Leaves 5-angled or shallowy 5-lobed (flowers white, summer) | Bur Cucumber, Sicyos angulatus. |
| 1b. Leaves 5-lobed to about the middle (commonly cultivated and frequently wild; flowers white, summer) | Wild Cucumber, Echinocystis lobata. |